Finding the Fourth Proportional to 88,990.76, 122,805.61 and 48,703.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,990.76 : 122,805.61 = 48,703.72 : x
2. Step 2: Convert to fraction form
   88,990.76/122,805.61 = 48,703.72/x
3. Step 3: Cross multiply
   88,990.76x = 122,805.61 × 48,703.72
4. Step 4: Simplify right side
   88,990.76x = 5,981,090,043.87
5. Step 5: Solve for x
   x = 5,981,090,043.87/88,990.76
6. Step 6: Final answer
   x = 67,210.24